A system for processing vehicle speed data for a vehicle is provided. If a delta-temperature fault is detected, then the power transistor is commanded to turn off. Before an oldest data record is lost, the oldest data record may be stored in a second data structure that is priority index-based. If so, the record of contact routing rules associated with the user is accessed and the contact is routed to at least two designated devices simultaneously, each designated device associated with a different telephone number.